From: | "Rodrigo Moreno" <rodrigo(dot)miguel(at)terra(dot)com(dot)br> |
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To: | "'Tom Lane'" <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | <pgsql-performance(at)postgresql(dot)org> |
Subject: | RES: RES: How to improve postgres performace |
Date: | 2005-04-18 17:46:56 |
Message-ID: | 20050418174701.BDD1219007F@arica.terra.com.br |
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Lists: | pgsql-novice pgsql-performance |
> That max_fsm_pages value is enough to cover 8Gb, so it should work OK for
a database disk footprint up to 10 or so Gb. > I don't know how many tables
in your installation so I can't say if max_fsm_relations is high enough, but
you can check >that by looking at the tail end of the output of VACUUM
VERBOSE. (Or just count 'em ;-))
The last count in vacuum verbose shows me 92 relations, and I know the lower
value for max_fsm_relations is enough, maybe I'll change to 500.
> Offhand these look reasonable, though, so if you are seeing database bloat
over time it probably means you need to tweak > your autovacuum settings.
I'm not much of an autovacuum expert, but maybe someone else can help you
there.
I'll let the autovacuum running this week to see what happen.
> You might want to keep track of physical file sizes over a period of time
and try to determine exactly where the bloat > is happening.
There is two mostly used and bigger tables, I'll keep eyes on both tables.
Thanks
Rodrigo Moreno
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